From a38fa32484286d2895dca10d3f53d3c7599d2f3b Mon Sep 17 00:00:00 2001
From: Christian Grothoff <christian@grothoff.org>
Date: Mon, 20 Mar 2017 02:29:33 +0100
Subject: fixing misc auditor issues

---
 src/util/amount.c | 50 +++++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 49 insertions(+), 1 deletion(-)

(limited to 'src/util/amount.c')

diff --git a/src/util/amount.c b/src/util/amount.c
index 44eefe6a6..e0664853a 100644
--- a/src/util/amount.c
+++ b/src/util/amount.c
@@ -529,9 +529,9 @@ char *
 TALER_amount_to_string (const struct TALER_Amount *amount)
 {
   char *result;
+  unsigned int i;
   uint32_t n;
   char tail[TALER_AMOUNT_FRAC_LEN + 1];
-  unsigned int i;
   struct TALER_Amount norm;
 
   if (GNUNET_YES != TALER_amount_is_valid (amount))
@@ -564,6 +564,54 @@ TALER_amount_to_string (const struct TALER_Amount *amount)
 }
 
 
+/**
+ * Convert amount to string.
+ *
+ * @param amount amount to convert to string
+ * @return statically allocated buffer with string representation,
+ *         NULL if the @a amount was invalid
+ */
+const char *
+TALER_amount2s (const struct TALER_Amount *amount)
+{
+  static char result[TALER_AMOUNT_FRAC_LEN + TALER_CURRENCY_LEN + 3 + 12];
+  unsigned int i;
+  uint32_t n;
+  char tail[TALER_AMOUNT_FRAC_LEN + 1];
+  struct TALER_Amount norm;
+
+  if (GNUNET_YES != TALER_amount_is_valid (amount))
+    return NULL;
+  norm = *amount;
+  GNUNET_break (GNUNET_SYSERR !=
+                TALER_amount_normalize (&norm));
+  if (0 != (n = norm.fraction))
+  {
+    for (i = 0; (i < TALER_AMOUNT_FRAC_LEN) && (0 != n); i++)
+    {
+      tail[i] = '0' + (n / (TALER_AMOUNT_FRAC_BASE / 10));
+      n = (n * 10) % (TALER_AMOUNT_FRAC_BASE);
+    }
+    tail[i] = '\0';
+    GNUNET_snprintf (result,
+                     sizeof (result),
+                     "%s:%llu.%s",
+                     norm.currency,
+                     (unsigned long long) norm.value,
+                     tail);
+  }
+  else
+  {
+    GNUNET_snprintf (result,
+                     sizeof (result),
+                     "%s:%llu",
+                     norm.currency,
+                     (unsigned long long) norm.value);
+  }
+  return result;
+}
+
+
 /**
  * Divide an amount by a float.  Note that this function
  * may introduce a rounding error!
-- 
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